Multiplication control for calculating machine



Oct. 19, 1965 H. J. CHALL ETAL MULTIPLICATION CONTROL FOR CALCULATING MACHINE 23 Sheets-Sheet 1 Filed NOV. 17, 1961 Oct. 19, 1965 H. J. CHALL ETAL 3,

MULTIPLICATIQN CONTROL FOR CALCULATING MACHINE Filed Nov. 1'7, 1961 23 Sheets-Sheet 2 3 I? IS F T1 IE F MQM .4 A

1965 H. J. CHALL ETAL 3,212,704

MULTIPLICATION CONTROL FOR CALCULATING MACHINE 23 Sheets-$heet 3 Filed Nov. 17, 1961 Oct. 19, 1965 H. J. CHALL ETAL 3,

MULTIPLICATION CONTROL FOR CALCULATING MACHINE Filed Nov. 17, 1961 23 Sheets-Sheet 4 Oct. 19, 1965 H. J. CHALL ETAL 3,212,704

MULTIPLICATION CONTROL FOR CALCULATING MACHINE 25 Sheets-Sheet 5 Filed Nov. 17, 1961 Oct. 19, 1965 H. J. CHALL ETAL MULTIPLICATION CONTROL FOR CALCULATING MACHINE 25 Sheets-Sheet 6 Filed Nov. 17, 1961 Oct. 19, 1965 H. J. CHALL ETAL 3,212,704

MULTIPLICATION CONTROL FOR CALCULATING MACHINE 23 Sheets-Sheet 7 Filed Nov. 17, 1961 min m-HI! Oct. 19, 1965 H. J. CHALL ETAL MULTIPLICATION CONTROL FOR CALCULATING MACHINE 25 Sheets-Sheet 8 Filed Nov. 17, 1961 MULTIPLICATION CONTROL FOR CALCULATING MACHINE 23 Sheets-Sheet 9 Filed Nov. 1'7, 1961 Q 3 wg Oct. 19, 965 H. J. CHALL ETAL 3,212,704

MULTIPLICATION CONTROL FOR CALCULATING MACHINE 25 Sheets-Sheet 10 Filed Nov. 17, 1961 1965 H. J. CHALL ETAL MULTIPLICATION CONTROL FOR CALCULATING MACHINE 23 Sheets-Sheet 11 Filed Nov. 17, 1961 Oct. 19, 1965 H. J. CHALL ETAL 23 Sheets-Sheet 12 Oct. 19, 1965 H. J. CHALL ETAL 3,212,704

MULTIPLICATION CONTROL FOR CALCULATING MACHINE 25 Sheets-Sheet 13 Filed Nov. 17, 1961 as 7/ %A Oct. 19, 1965 H. J. CHALL ETAL 3,212,704

MULTIPLICATION CONTROL FOR CALCULATING MACHINE Filed Nov. 17, 1961 25 Sheets-Sheet 14 Oct. 19, 1965 H. J. CHALL ETAL 3,212,704

MULTIPLICATION CONTROL FOR CALCULATING MACHINE 25 Sheets-Sheet 15 Filed Nov. 1'7, 1961 Oct. 19, 1965 H. J. CHALL ETAL 3,212,704

MULTIPLIOATION CONTROL FOR CALCULATING MACHINE 25 Sheets-Sheet 16 Filed Nov. 1'7, 1961 Oct. 19, 1965 J CHALL L 3,212,704

MULTIPLICATION CONTROL FOR CALCULATING MACHINE Filed Nov. 17, 1961 25 Sheets-Sheet 17 1965 H. J. CHALL ETAL 3,212,704

MULTIPLICATION CONTROL FOR CALCULATING MACHINE 25 Sheets-Sheet 18 Filed NOV. 17, 1961 Oct. 19, 1965 H. J. CHALL ETAL MULTIPLICATION CONTROL FOR CALCULATING MACHINE 23 Sheets-Sheet 19 Filed NOV. 17, 1961 WW -WIN! P WIM IH-H IE Oct. 19, 1965 J. CHALL ETAL 3,212,704

MULTIPLICATION CONTROL FOR CALCULATING MACHINE 25 Sheets-Sheet 20 Filed Nov. 1'7, 1961 

1. IN COMBINATION IN AN AUTOMATIC CALCULATING MACHINE, A MULTIPLIER-STORAGE REGISTER INCLUDING A DIFFERENTIALLY SETTABLE MEMBER FOR EACH NUMERICAL ORDER, EACH OF SAID MEMBER HAVING A SERRATED EDGE, A DETENT FOR EACH SAID MEMBER ENGAGING A SERRATED EDGE THEREOF FOR RELEASABLY HOLDING SAID MEMBER IN ANY OF A PLURALITY OF DIFFERENTIALLY SET POSITIONS, MEANS RESPONSIVE TO THE SET POSITIONS OF SAID MEMBERS FOR CONTROLLING A MULTIPLICATION OPERATION BY SAID MACHINE, CONTROL MEANS OPERABLE FOR INITIATING A MULTIPLICATION OPERATION, AND MEANS RESPONSIVE TO AN INITIATION OF A MULTIPLICATION OPERATION BY SAID CONTROL MEANS FOR BLOCKING SAID DETENTS FOR HOLDING THEM IN THE SERRATIONS OF SAID EDGES FOR THEREBY LOCKING SAID DIFFERENTIALLY SETTABLE MEMBERS. 